* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #2c3e50;
            --secondary-color: #3498db;
            --accent-color: #e74c3c;
            --light-color: #ecf0f1;
            --dark-color: #1a252f;
            --text-color: #333;
            --text-light: #7f8c8d;
            --border-color: #ddd;
            --shadow: 0 4px 12px rgba(0,0,0,0.1);
            --transition: all 0.3s ease;
            --max-width: 1200px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-color);
            background-color: #f9f9f9;
            overflow-x: hidden;
        }
        a {
            color: var(--secondary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-color);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul {
            list-style: none;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            background-color: var(--secondary-color);
            color: white;
            border: none;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
            text-align: center;
        }
        .btn:hover {
            background-color: var(--accent-color);
            color: white;
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }
        header {
            background-color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary-color);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .logo span {
            color: var(--accent-color);
        }
        .nav-desktop {
            display: flex;
            gap: 25px;
        }
        .nav-desktop a {
            font-weight: 600;
            font-size: 1rem;
            color: var(--primary-color);
            position: relative;
        }
        .nav-desktop a:hover {
            color: var(--accent-color);
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent-color);
            transition: var(--transition);
        }
        .nav-desktop a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 5px;
            background: none;
            border: none;
            padding: 5px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: var(--primary-color);
            border-radius: 3px;
            transition: var(--transition);
        }
        .mobile-nav {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background-color: white;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            padding: 20px;
            flex-direction: column;
            gap: 15px;
            z-index: 999;
        }
        .mobile-nav.active {
            display: flex;
        }
        .breadcrumb {
            background-color: var(--light-color);
            padding: 12px 0;
            font-size: 0.9rem;
            color: var(--text-light);
        }
        .breadcrumb a {
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--secondary-color);
        }
        .breadcrumb span {
            margin: 0 8px;
        }
        main {
            padding: 40px 0;
            background-color: white;
        }
        .article-header {
            margin-bottom: 40px;
            padding-bottom: 20px;
            border-bottom: 2px solid var(--border-color);
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary-color);
            margin-bottom: 20px;
            line-height: 1.2;
        }
        .article-meta {
            display: flex;
            gap: 20px;
            color: var(--text-light);
            font-size: 0.9rem;
            margin-bottom: 15px;
        }
        .article-meta i {
            margin-right: 5px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        .article-content {
            font-size: 1.1rem;
        }
        h2 {
            font-size: 2rem;
            color: var(--primary-color);
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border-color);
        }
        h3 {
            font-size: 1.6rem;
            color: var(--dark-color);
            margin: 30px 0 15px;
        }
        h4 {
            font-size: 1.3rem;
            color: var(--dark-color);
            margin: 25px 0 12px;
        }
        p {
            margin-bottom: 25px;
            text-align: justify;
        }
        .highlight {
            background-color: #fff9e6;
            border-left: 4px solid #f1c40f;
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .highlight p:last-child {
            margin-bottom: 0;
        }
        blockquote {
            font-style: italic;
            color: var(--text-light);
            border-left: 4px solid var(--secondary-color);
            padding-left: 20px;
            margin: 25px 0;
        }
        ul.content-list {
            list-style-type: disc;
            margin-left: 25px;
            margin-bottom: 25px;
        }
        ul.content-list li {
            margin-bottom: 10px;
        }
        .featured-image {
            margin: 30px 0;
            text-align: center;
        }
        .featured-image img {
            border-radius: 10px;
            box-shadow: var(--shadow);
            margin: 0 auto;
        }
        .image-caption {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-top: 10px;
            font-style: italic;
        }
        .sidebar {
            background-color: var(--light-color);
            padding: 25px;
            border-radius: 10px;
            height: fit-content;
            position: sticky;
            top: 120px;
        }
        .sidebar-widget {
            margin-bottom: 30px;
        }
        .sidebar-widget h3 {
            font-size: 1.3rem;
            margin-bottom: 15px;
            color: var(--primary-color);
        }
        .search-form {
            display: flex;
            margin-bottom: 20px;
        }
        .search-input {
            flex-grow: 1;
            padding: 12px 15px;
            border: 1px solid var(--border-color);
            border-radius: 6px 0 0 6px;
            font-size: 1rem;
        }
        .search-btn {
            background-color: var(--secondary-color);
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 6px 6px 0;
            cursor: pointer;
        }
        .related-links ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .related-links li {
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border-color);
        }
        .related-links li:last-child {
            border-bottom: none;
        }
        .interactive-section {
            background-color: #f8f9fa;
            padding: 30px;
            border-radius: 10px;
            margin: 40px 0;
            box-shadow: var(--shadow);
        }
        .interactive-section h2 {
            margin-top: 0;
        }
        .rating-widget, .comment-widget {
            margin-top: 30px;
        }
        .rating-stars {
            display: flex;
            gap: 10px;
            margin-bottom: 20px;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover, .star.active {
            color: #f1c40f;
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .form-group label {
            font-weight: 600;
        }
        .form-group input, .form-group textarea {
            padding: 12px 15px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 1rem;
            font-family: inherit;
        }
        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }
        footer {
            background-color: var(--dark-color);
            color: white;
            padding: 50px 0 20px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h3 {
            color: white;
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-links a {
            color: #bbb;
        }
        .footer-links a:hover {
            color: white;
        }
        friend-link {
            display: block;
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid #444;
        }
        friend-link h4 {
            color: white;
            margin-bottom: 15px;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #444;
            color: #bbb;
            font-size: 0.9rem;
        }
        @media (max-width: 1024px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            h1 {
                font-size: 2.4rem;
            }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .header-container {
                padding: 12px 0;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.4rem;
            }
            .interactive-section {
                padding: 20px;
            }
            .footer-content {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            h1 {
                font-size: 1.8rem;
            }
            .article-meta {
                flex-direction: column;
                gap: 8px;
            }
            .btn {
                padding: 10px 20px;
                width: 100%;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .article-content > * {
            animation: fadeIn 0.5s ease forwards;
        }
        .term {
            background-color: #e8f4fc;
            padding: 2px 6px;
            border-radius: 4px;
            font-weight: 600;
            color: var(--primary-color);
        }
        .key-point {
            background-color: var(--light-color);
            padding: 25px;
            border-radius: 10px;
            margin: 25px 0;
            border-left: 5px solid var(--secondary-color);
        }
        .player-quote {
            background-color: #fef9e7;
            padding: 25px;
            border-radius: 10px;
            margin: 25px 0;
            font-style: italic;
            position: relative;
        }
        .player-quote::before {
            content: '"';
            font-size: 4rem;
            color: var(--secondary-color);
            position: absolute;
            top: -10px;
            left: 10px;
            opacity: 0.3;
        }
        .stat-box {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 20px;
            margin: 30px 0;
        }
        .stat-item {
            text-align: center;
            padding: 20px;
            background-color: white;
            border-radius: 10px;
            box-shadow: var(--shadow);
            flex: 1;
            min-width: 150px;
        }
        .stat-value {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--secondary-color);
            margin-bottom: 5px;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-light);
        }
        .strategy-tip {
            background-color: #d5f4e6;
            padding: 20px;
            border-radius: 10px;
            margin: 20px 0;
            border-left: 5px solid #2ecc71;
        }
        .strategy-tip h4 {
            color: #27ae60;
            margin-top: 0;
        }